Pipe-joint.



H. E. BURNS.

PIPE JOINT.

APPLICATION FILED DEC. Il. |916.

Patented June 19, 19N.

2 SHEETS-SHEET I.

Wifi? asses.-

H. E. BURN PIPE JOINT.

APPLICATION men DEc.11. |916.

1,230,375 Patented M919, 1917.

2 SHEETS-SHEET 2A will be more fully brought out in connec- HOWARD E. BURNS, OF CHICAGO, ILLINOIS, ASSIGNOR TO C. F. MASSEY COMPANY, OF

CHICAGO, ILLINOIS, A CORPORATION OF. ILLINOIS.

` run-roms.

Specicaticn of Letters Patent.

y Patented June 19, 1917.

To all whom t may concern:

Be it known that i, HOWARD E. BURNS, a citizen of the United States, residing at Chicago, in the county of Cook and State of illinois, 'have invented a certain new and useful improvement in Pipe-Joints, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in pipe joints and particularly to that class of pipe joints commonly faucet joints.

It is one of the objects of the present invention to provide a tight spigot and faucet joint and to accomplish this object I provide between the two pipe sections a mastic iller and a wedge shaped ring arranged when subjected to pressure from within the pipes to press against the mastic ller and force the ller to expand to tightly seal the space between the two adjoining pipe sections.

These and other objects of my invention tion with the accompanying drawings, wherein- Figure 1 is a vertical sectional view of two adjoining pipe sections show-ing one form of joint constituting my invention;

Fig. 2 is a transverse sectional view taken along the line 2--2 of Fig. 1, looking in the direction indicated by the arrows; and

Fig. 3 is a view similar to Fig. 1 showing two adjoining pipe sections joint constituting the preferred form of my invention.

Similar characters of reference refer to similar parts in both views.

Referring rst to Fig. 1, 3 illustrates a pipe section preferably constructed of clay or some similar material having its right hand end 4, (Fi 1) enlarged as shown and provided with t e socket shown at 5. The pipe section 6 is constructed exactly as is the section 3 and contains at its left hand end the spigot 7 fitting into the socket 5 of the pipe section 3. interposed between the two pipe sections 3 and 6 is a mastic ller or washer 8 extendin entirely aroundlthe annular space provi ed between the two pipe sections. The adjacent edges of the pipe i sections 3 and 6 are formed so as to provide the annular wedge shaped recess 9 extenda bituminous lor tar known as spigot and Y ller 8 between them and embodying a ing inwardly from the filler 8 and having the apex of the wedge disposed directly against the inner side of the mastic filler or washer 8. Before assembling the pipe sections 3 and 6 the walls 10 and 11 of the wedge shaped annular recess are coated with filler. This complished by means of a brush vement means.

Extending through the pipe section y3 and communicat' g with the wedge shaped recess 9 is a bore 12 preferably tapered outwardly as shown in the drawings. A second bore 13 is provided substantially diametrically opposite the bore 12the bore 13 also tapering outwardly as shown. 14 illustrates a locking key formed of mortar or cement and extending into the annular grooves 15 and 16 provided respectively in the pipe secor any contions 3 and 6. This key arrangement prevents the separation of the pipe sections.

After the coatings 10 and 11 have been applied to the sections 3 and 6 and the pipe sections united as shown in Fig. 1 with the the locking, key 14.- in place the pipe is allowed to set for a pe-l riod of time. After such time has expired the pipe is entered by the workman and the expansible andcontractible form 17, placed around the inside of the pipe sections so as to cover the annular recess 9 as illustrated. Grout is then forced through the bore 12 into the wedge shaped recess 9. After they recess becomes filled the grout starts to pass outwardly 'through the bore 13 and when this occurs the workman is notified that the annular recess 9 is filled. The form' 17 may then be removed by means of the bolt 18 which is turned to cause contraction of the form 17. to permit such removal.A Due to the tapering form ofthe bores 12 and 13 the grout will be held in place and will not be permitted to crumble away or fall out of the bores.

0n account of the bituminous coatings 10 and 11 the wedge shaped grout illing19 is prevented from adhering to the pipe sections 3 and 6, so that when pressure is applied to the inside of the pipe sections the grout filling 19 will be forced outwardly against the mastic filler 8 to tightly seal the space between the pipe sections. It will be observed therefore that the joint between the pipes is made tighter as the pressure within the pipes is increased.

maf)7 be acin order to iioid 'the mastic iiei in its nular oi Washer shape While it is oeiiig transported oi before it is inserted between tivo pipe sections the iiiiei Contains e puality of cloth oi iibei' layers shown et 2() 2O which serve io ieinoi'ce the filler so that the Washer is eoinp@323s'ii/ei;y rigid and can be handled to ecivenege. "ie reinforce the giout iiliing 19 two oi mene reinforcing inetailic rings 21-21 may be embedded in the gione, Jdus being Geoinplishe by inserting the rings inie the nuizii space 9 before the giout is ieieed inte die space.

Referring now to Fig. 8., which iiiusinies the piefeireii forni of in] inifeiieion7 30 ene, 3l illustrate edlioining pipe sections eeiiespending wiii eine pipe sections fi of Fig. ne construction shown i i'iguie the bores i2 anni 13 shown are (iispense Wiii and to iii the shaped ieeess 33 ,Witii grou'n iioitm, i provided Wiii en opening and si eu? Weicib projecting JLube 36 disposee. sneeri tiaiij dieine'tiieelii' epposite jue 1|noie iiiiing 'Liie i-eeess mirough '-:iie opening; unix?.

cerne out ef ne iecess ihiougu f i i e. The iioiin 3 may enen be ieineifeci enel,

opening' provided by ehe tube 3o' piugge i in any suiliubie niziiinei. This eifnsiuei; makes possibie to do eli she wen-ii neces be iiii "ie iveeess 33 from ins/Lj die pipe, 'which ucconipiisiief einer fis iis-.ve been eiiowee iiiiei en; ne ieciii puce.

ffiiiiiougfii "neve ieieiiec shaped filling :is e giout iiiiing i uis'ii be uncle oefl anni any; other suivut sie i'iui may be einpioyed5 such es espneit, send. ec.. in feos anything Wiiieii Wiie pand upon Y'eeing subjected te piessuie uit 'n the pipe` Aliving juus described my inifeneione n, e fiziiin es iiev emi desii'e "no secure io? LM- Piment e? iiie United Stai-'Les is.'

provision 0;' y shapes cess formes', eeW-een the pipe seciens having iis spez: directe@ ouew miei' oin the iniieiioi oit tie pipe its ei *insite side cominuniceing ii'iii the inieiior of ine pipe. a @Tout iiiiing in saici iecess.y uns. e mastic iiiiei1 4between the pipe seeeions and disposeL mound the ap l; of iie iecess whereby expansion of the gi'out iiiing pioduees eoinpiession of the mastic iiiiei previde a tight join?. between ehe pipe sec-tiens.

2. 'in e pipe joint the provision of ennuiai wedge shaped gioni; iiiing having its apex directed anni from 'the ineiioi of Jdie pipe and its opposite side siiiijectef pi'essuie Within iiie pipe an e. inesic iiiei beiiieen itiie seciions dispose/:

L. P fi.

duees coinpiession oi the mastic iei to pi'ovide a tight joint between the pipe sections. 'le

3. En zi spigot and faucet joiu eine provision of: en ennuie? Wedge shaped i"eeese oiine. between ihe pipe sections having its epe): directed outwardly ewey i"ieni ehe inteiioi' oi'i' iL-iie pipe and its oppesiie side 75 coiniiiuLiceiipigv with the ineiiei einv die pipei e. bituminous coating on diie Weiis ei: ne iecess, i groui iiiing in iiie iecess.; and s, mastic niiei beeween diie pipe seeeions :ind disposed @pound ifne apen ei' the iiecess sie whereby if; is causeii te expand pirevicie eight ioinfe between the piL seeiiens when eonipiessed by *die Wedge shaped.

ini@ eng'zigeinwn.

s commesi eig'ni 'ie pipe seef'iions.

. ences pipe iiiei between i' the pipe sections and an expansible ring arranged when subjected to pressure within the pipe to force the mastic filler tightly into engagement with the ends of the pipe sec- -5 tions and the iange of the female pipe vsection.

9. In a spigot and faucet joint the provision of an annular wedge shaped recess formed between the pipe sections and hav- 10 ing its apex directed outwardly away from the interior of the pipe and its opposite side communicating with the interior of the pipe, a bituminous coating on the walls of the recess, a illingin the recess, and a mastic ller between the pipe sections and disposed 15 around the apex of the recess whereby it is caused to expand and provide a tight joint between the pipe sections when compressed by the wedge shaped filling.

In witness whereof, I hereunto subscribe 20Y my name this 2nd day of December, A. D.

HOWARD E. BURNS. Witnesses:

A. G. MCOALEB, ROBERT F. BRACKE. 

